EP4042688A4 - Context adaptive transform set - Google Patents
Context adaptive transform set Download PDFInfo
- Publication number
- EP4042688A4 EP4042688A4 EP21867303.6A EP21867303A EP4042688A4 EP 4042688 A4 EP4042688 A4 EP 4042688A4 EP 21867303 A EP21867303 A EP 21867303A EP 4042688 A4 EP4042688 A4 EP 4042688A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- context adaptive
- transform set
- adaptive transform
- context
- transform
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003044 adaptive effect Effects 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
- H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/103—Selection of coding mode or of prediction mode
- H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/103—Selection of coding mode or of prediction mode
- H04N19/109—Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
- H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/18—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a set of transform coefficients
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/184—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US202063076817P | 2020-09-10 | 2020-09-10 | |
US202063077381P | 2020-09-11 | 2020-09-11 | |
US17/354,731 US11683490B2 (en) | 2020-09-10 | 2021-06-22 | Context adaptive transform set |
PCT/US2021/039665 WO2022055599A1 (en) | 2020-09-10 | 2021-06-29 | Context adaptive transform set |
Publications (2)
Publication Number | Publication Date |
---|---|
EP4042688A1 EP4042688A1 (en) | 2022-08-17 |
EP4042688A4 true EP4042688A4 (en) | 2022-12-14 |
Family
ID=80471073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21867303.6A Pending EP4042688A4 (en) | 2020-09-10 | 2021-06-29 | Context adaptive transform set |
Country Status (6)
Country | Link |
---|---|
US (2) | US11683490B2 (en) |
EP (1) | EP4042688A4 (en) |
JP (2) | JP7500732B2 (en) |
KR (1) | KR20220077931A (en) |
CN (1) | CN114641996A (en) |
WO (1) | WO2022055599A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220094977A1 (en) * | 2020-09-23 | 2022-03-24 | Electronics And Telecommunications Research Institute | Method, apparatus and storage medium for image encoding/decoding |
US20220092827A1 (en) * | 2020-09-23 | 2022-03-24 | Electronics And Telecommunications Research Institute | Method, apparatus, system and computer-readable recording medium for feature information |
WO2024080623A1 (en) * | 2022-10-12 | 2024-04-18 | 삼성전자 주식회사 | Ai-based image encoding device and image decoding device, and image encoding and decoding method by same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010087807A1 (en) * | 2009-01-27 | 2010-08-05 | Thomson Licensing | Methods and apparatus for transform selection in video encoding and decoding |
EP3588952A1 (en) * | 2017-03-21 | 2020-01-01 | LG Electronics Inc. -1- | Transform method in image coding system and apparatus for same |
EP3836543A1 (en) * | 2018-09-02 | 2021-06-16 | Lg Electronics Inc. | Image coding method based on multiple transform selection and device therefor |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011043793A1 (en) * | 2009-10-05 | 2011-04-14 | Thomson Licensing | Methods and apparatus for embedded quantization parameter adjustment in video encoding and decoding |
US9788019B2 (en) | 2011-03-09 | 2017-10-10 | Hfi Innovation Inc. | Method and apparatus of transform unit partition with reduced complexity |
FR3038196A1 (en) | 2015-06-29 | 2016-12-30 | B<>Com | METHOD FOR ENCODING A DIGITAL IMAGE, DECODING METHOD, DEVICES AND COMPUTER PROGRAMS |
US10681379B2 (en) | 2015-09-29 | 2020-06-09 | Qualcomm Incorporated | Non-separable secondary transform for video coding with reorganizing |
US20170150156A1 (en) * | 2015-11-25 | 2017-05-25 | Qualcomm Incorporated | Illumination compensation with non-square predictive blocks in video coding |
US10880564B2 (en) | 2016-10-01 | 2020-12-29 | Qualcomm Incorporated | Transform selection for video coding |
EP3451663A1 (en) | 2017-08-31 | 2019-03-06 | Thomson Licensing | Pools of transforms for local selection of a set of transforms in video coding |
US10567801B2 (en) | 2018-03-07 | 2020-02-18 | Tencent America LLC | Method and apparatus for video coding with primary and secondary transforms |
JP2021519546A (en) | 2018-03-29 | 2021-08-10 | フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン | Determining a candidate conversion set for video coding |
CN109283753A (en) * | 2018-10-30 | 2019-01-29 | 武汉华星光电技术有限公司 | Display panel and display device |
US12010342B2 (en) * | 2019-02-09 | 2024-06-11 | Lg Electronics Inc. | Method and device for processing video signal |
US20220086490A1 (en) * | 2019-02-12 | 2022-03-17 | Lg Electronics Inc. | Method and apparatus for processing video signal |
US11240534B2 (en) * | 2019-04-05 | 2022-02-01 | Qualcomm Incorporated | Extended multiple transform selection for video coding |
-
2021
- 2021-06-22 US US17/354,731 patent/US11683490B2/en active Active
- 2021-06-29 WO PCT/US2021/039665 patent/WO2022055599A1/en unknown
- 2021-06-29 EP EP21867303.6A patent/EP4042688A4/en active Pending
- 2021-06-29 JP JP2022538768A patent/JP7500732B2/en active Active
- 2021-06-29 CN CN202180006246.8A patent/CN114641996A/en active Pending
- 2021-06-29 KR KR1020227016396A patent/KR20220077931A/en active Search and Examination
-
2022
- 2022-12-15 US US18/082,248 patent/US12088805B2/en active Active
-
2024
- 2024-06-05 JP JP2024091076A patent/JP2024107103A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010087807A1 (en) * | 2009-01-27 | 2010-08-05 | Thomson Licensing | Methods and apparatus for transform selection in video encoding and decoding |
EP3588952A1 (en) * | 2017-03-21 | 2020-01-01 | LG Electronics Inc. -1- | Transform method in image coding system and apparatus for same |
EP3836543A1 (en) * | 2018-09-02 | 2021-06-16 | Lg Electronics Inc. | Image coding method based on multiple transform selection and device therefor |
Non-Patent Citations (1)
Title |
---|
See also references of WO2022055599A1 * |
Also Published As
Publication number | Publication date |
---|---|
US11683490B2 (en) | 2023-06-20 |
KR20220077931A (en) | 2022-06-09 |
CN114641996A (en) | 2022-06-17 |
US12088805B2 (en) | 2024-09-10 |
JP2024107103A (en) | 2024-08-08 |
JP7500732B2 (en) | 2024-06-17 |
WO2022055599A1 (en) | 2022-03-17 |
JP2023508364A (en) | 2023-03-02 |
EP4042688A1 (en) | 2022-08-17 |
US20220078423A1 (en) | 2022-03-10 |
US20230118056A1 (en) | 2023-04-20 |
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STAA | Information on the status of an ep patent application or granted ep patent |
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Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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A4 | Supplementary search report drawn up and despatched |
Effective date: 20221111 |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: H04N 19/61 20140101ALN20221107BHEP Ipc: H04N 19/176 20140101ALI20221107BHEP Ipc: H04N 19/159 20140101ALI20221107BHEP Ipc: H04N 19/12 20140101AFI20221107BHEP |
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DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) |